



Desert MAR 


COMERS AL 
@TNGNG. 





Delica White 
Best Glass itor Light 


Catalogue Naso 


Now doing the business formerly conducted by 
PITTSBURGH LAMP, ERASS & GLASS COMPANY 
at 


Swissvale, Pa. 











T IS our pleasure to present to you in this Catalogue, illustra- 


tions of our line of LIGHTING UNITS. 


Our Units have been scientifically designed to give the most 
light, with proper diffusion, for given wattage. They are beautiful 
in appearance and at the same time yield the highest degree of 
efficiency. 


In the wide range of shapes and sizes in which these Units are 
made, we offer to the trade a Lighting Unit for every purpose— 
Plain Units in single Glass, our Superior NICCO OPAL Glass, for 
Commercial and Industrial lighting, and the more graceful shapes 
in Cased Glasses—DELICA WHITE and DEL IVORY, with 
various decorative effects to meet the requirements for any artistic 
interiors or Public Buildings. 


It is the policy of the KOPP GLASS, INC., to make a product 
of quality and merit rather than inferior merchandise at lower 
prices. Considering the efficiency and service obtained from our 
Units we believe that in the end they will prove to be the most 
economical. 


Our position today in the Lighting Field is not attributable to 
any special privilege or secret process but rather to the intelligent 
application of skill and useful knowledge of Glassmaker’s art and 
chemistry gained from many years of practical experience and 
untiring efforts. 


We also manufacture Decorative Shades for Residential Light- 
ing and special uses, illustrated in our Catalogue No. 32. Elec- 
troliers and Torcheres—Catalogue No. 33. If interested in these 
lines we will be glad to forward Catalogues on request. 


“kK. Gol.” Aims to SATISEY. 


KOPP GLASS, INC. 


-@ Kopp 6148s Inc. SwissvALK,Pa._ 


DELICA WHITE CASED GLASS 
DEL IVORY CASED GLASS 
NICCO OPAL GLASS 


N THE opposite page you will find illustrated various shapes and 

decorative effects in our line of LIGHTING UNITS, representing 
modern French as well as classic ideas in Decorations, some of which 
are quite a departure from the usual run of Units. 


Certain Units are designed for special purposes, such as our— 
BRILLIANT UNIT, illustrated on Page 4, of this Catalogue. This Unit 
is recommended for Jewelry Stores, Restaurants and Display Rooms— 
it has found immediate reception wherever shown. 


DELICA WHITE CASED GLASS 


On account of the process employed in making DELICA WHITE 
CASED GLASS, viz., that of casing or spreading a fine film of high grade 
Pure White Glass over a main body of Crystal Glass, we obtain a Glass 
of greatest diffusion and smallest absorption, with a highly polished 
surface. A simple test to show the delicacy of this Glass is to lay a piece 
of printed matter against the inner surface of the Glass and you will note 
that it can be easily read, which cannot be done with other Glasses. 


DEL IVORY CASED GLASS 


This Glass is made by the same process as the Delica White Glass, 
the fine film being of a light Ecru Color Glass, producing a beautiful 
Ivory color. This Glass is more for decorative effect where a strong 
light is not desired—is most suitable for Hospitals, Churches and special 
effects in interiors. 


NICCO OPAL GLASS 


Our NICCO OPAL Glass is also a Glass of special merit and should 
not be confused with ordinary Opal Glass. It is also the result of years 
of experiments and we do not hesitate to say that it is the strongest Glass 
on the market today. Besides having a low absorption and good diffu- 
sion it will also withstand various changes in temperature, and has proven 
highly satisfactory in places where Glass is exposed to changes of the 
elements. We believe a trial of this Glass will convince you of the 
superiority we claim for it. , 


a] 2 Ib 


@- Korr_Gtiass Inc, SwiISsvaLk.Pa. 


Q11N-4 913 N-4 3631-4 868 1-4 
912N-4 914N-4 8671-4 869 1-4 
915 N-4 870 1-4 


884 D-4 
885 D-4 
886 D-4 


“he letter ‘ Designates DELICA WHITE Cased Gla: 
The letter ae Z ee L LV ORNSE: ased Gl SS. 
‘h 


e letter “ 








Brilliant Unit 


Nicco Opal and Imitation Cut Crystal Glass 
Two-piece Unit joined with Spun Brass Nickel Plated Ring 


: Recommended Standard Weight 
Number Fitter Diameter Depth Wattage Package Package 
920-N Ouine 3) tide tk stint. 300 1/9 Doz. Lieibss 


Fixture illustrated above is No. 2971—6-in. Fitter. See page 14 for further infor- 
mation pertaining to Fixture. For price information see page 2 of separate price list. 


When ordering Units specify Complete Number including Decoration Number. 


4 





‘Sb Ss 
9l2 914 
915 





N-Nicco Opal Glass 
Plain and Decoration 4, ‘‘NEW EMPIRE” Design in Ecru Color 


Recommended Standard Weight 

Number Fitter Diameter Depth Wattage Package Package 
911 4 in. 10 in. sk 100 to 150 14 doz. 25ulbse 
912 6 in. WP itia. 71% in. 150 to 200 Yé doz. 18 lbs. 
913 6 in. 14 in. 914 in. 200 1/15 doz. 12 lbs. 
914 6 in. 16 in. 1014 in. 300 1/15 doz. i Salipse 
915 4 in. 12m 71% in. 150 to 200 Yé doz. 18 lbs. 


Chain Fixture illustrated above is No. 2970—4-in. Fitter. No. 2971—6-in. Fitter. 
Ceiling Type Fixture No. 2975—6-in. Fitter. No. 2985—4-in. Fitter. See page 14 for 
further information pertaining to Fixtures. 

SPECIAL NOTE—Above Units are carried in stock without hole in bottom. If 
desired with hole there will be an extra charge for drilling. For price informa- 
tion see page 2 of separate price list. 

When ordering Units, specify Complete Number including Decoration Number 


5 





D-Delica White Cased Glass I-Del Ivory Cased Glass 
Plain and Decoration 4, ‘‘SCROLL’’ Design in Ecru Color 


Recommended Standard Weight 
Number Fitter Diameter Depth Wattage Package Package 
901 314 in. 6% in. 5% in. SO ive) 7/5 1 doz. 18 lbs. 
902 Aine 81% in. 714 in. 75 to 100 24 doz. 28 Ibs. 
903 A ein 101% in. Silke 100 to 150 lg doz. 22 lbs. 
904 seat, 1214 in. LO sane 150 to 200 Ye doz. 18 lbs. 
905 (same 1414 in. 1034 in. 200 l~% doz. 20 lbs. 
906 69) ine Ke atsayy 12% in. 300 yo doz. 15 lbs. 
907 Gumi ley shat 1434 in. 300 to 500 Wyo doz. 20 |bs. 
908 4 in. 12% in. IKO) Siar 150 to 200 Ye doz. 18 lbs. 


é. Chain Fixture illustrated above is No. 2970—4-in. Fitter. No. 2971—6-in. Fitter. Ceiling Type 
Fixture No. 2975—6-in. Fitter. No. 2985—4-in. Fitter. See page 14 for further information pertaining 
to Fixtures. 

SPECIAL NOTE—Above Units are carried in stock without hole in bottom. If desired with hole 
there will be an extra charge for drilling. For price information see pages 2 and 3 of separate price 


list. 
When ordering Units, specify Complete Number including Decoration Number 


6 


863 868 
867 869 
SW A0) 


DEC. 4. ADAMS. DESIGN. 





D-Delica White Cased Glass I-Del Ivory Cased Glass 
N-Nicco Opal Glass 


Plain and Decoration 4, ‘‘ADAMS” Design in Ecru Color 


Recommended Standard Weight 

Number Fitter Diameter Depth Wattage Package Package 
863 4 in. 10> in: 7% in. 100 to 150 ¥ doz. 25 lbs. 
867 4 in. 8 in. 6% in. 75 to 100 2% doz. 27 Ibs. 
868 5 in. 1OMein: 7% in. 100 to 150 Y doz. 25 Ibs. 
869 + 6 in. 12% in. 8% in. 150 to 200 Yé doz. 16 lbs. 
870 6 in. 15% in. 10 in. 300 ¥% doz. 19 lbs. 


Chain Fixture illustrated above is No. 2970—4-in. Fitter. No. 2971—6-in. Fitter 
Fixture No. 2975—6-in. Fitter. No. 2985—4-in. Fitter. 
to Fixtures. 


. Ceiling Type 
See page 14 for further information pertaining 


SPECIAL NOTE—Above Units are carried in stock without holein bottom. If desired with hole 


there will be an extra charge for drilling. For price information see page 3 of separate price 
ist. 


When ordering Units, specify Complete Number including Decoration Number 


7 


DEC.4. EMPIRE DESIGN. 


852 855 
853 861 
854 865 





D-Delica White Cased Glass I-Del Ivory Cased Glass 
N-Nicco Opal Glass 


Plain and Decoration 4, ‘‘EMPIRE”’ Design in Ecru Color 


Recommended Standard Weight 

Number Fitter Diameter Depth Wattage Package Package 
852 4 in. 10 in. 7 ins 100 to 150 ¥ doz. 25 lbs. 
853 6 in. PD se ean: 150 to 200 Ye doz. 16 lbs. 
854 6 in. 14 in 9 in. 200 ¥ doz. 18 lbs. 
855 6 in. 16 in. 11% in. 300 1/12 doz. 15 lbs. 
861 4 in. 12 in. Sain: 150 to 200 ¥ doz. 16 lbs. 
865 4 in. 8 in. Gierin. 75 to 100 1 doz. 26 lbs. 


_ Chain Fixture illustrated above is No. 2970—4-in. Fitter. No. 2971—6-in. Fitter. Ceiling Type 
Fixture No. 2975—6-in. Fitter. No. 2985—4-in. Fitter. See page 14 for further information pertaining 
to Fixtures. ' 

SPECIAL NOTE—Above Units are carried in stock without hole in bottom. If desired with hole 
phere wal be an extra charge for drilling. For price information see pages 3 and 4 of separate 
price list. 

When ordering Units, specify Complete Number including Decoration Number 


8 


DEC.4 "RENAISSANCE DESIGN — 


881 884 
882 885 
883 886 





D-Delica White Cased Glass 
Plain and Decoration 4, ‘SRENAISSANCE”’ Design in Ecru Color 


Recommended Standard Weight 

Number Fitter Diameter Depth Wattage Package Package 
881 4 in. 9 in. 84 in. 75 to 100 ¥g doz. 22 |bs. 
882 4 in. 10 in. 834 in. 100 to 150 4g doz. 21 Ibs. 
883 4in. 12 in. 10 in. 150 to 200 ¥ doz. 15 lbs. 
884 6 in. 12 in. LOR eine 150 to 200 ¥% doz. 15 lbs. 
885 6 in. 14 in. 12% in. 200 ¥e doz. 18 lbs. 
886 6 in. 16 in. 12% in. 300 1/yo doz. 14 lbs. 


Chain Fixture illustrated above is No. 2970—4-in. Fitter. No. 2971—6-in. Fitter. Ceiling Type 
Foor No. 2975—6-in. Fitter. No. 2985—4-in. Fitter. See page 14 for further information pertaining 
to Fixtures. 


SPECIAL NOTE—Above Units are carried in stock without hole in bottom. If desired with hole 
there will be an extra charge for drilling. For price information see page 4 of separate price 


list. 
When ordering Units, specify Complete Number including Decoration Number 


9 |e 


= 





‘DEC. 4. “EMPIRE” DESIGN. 


D-Delica White Cased Glass I-Del Ivory Cased Glass 
N-Nicco Opal Glass 


Plain and Decoration 4, ‘‘EMPIRE”’’ Design in Ecru Color 


Recommended Standard Weight 

Number Fitter Diameter Depth Wattage Package Package 
862 6 in. WA 2 jeer 150 to 200 VY doz. 17 lbs. 
866 4 in. Line Hh sea. 50) tome) 1 doz. 23 lbs. 
873 4 in. 10 in. Omens 100 to 150 ¥ doz. 22 Ibs. 
874 Sane 10 in. 10 sin. 100 to 150 144 doz. 22 lbs. 
875 6 in. 14 in. 13% in. 200 1/12 doz. 12 lbs. 
876 8 in. 14 in. 13% in. 200 1/12 doz. 12 lbs. 
877 6 in. 16 in. 15% in. 300 1/12 doz. 15 lbs. 
878 8 in. 16 in. 15% in. 300 1/2 doz. 15 lbs. 
896 4 in. Sin. 8 in. 75 to 100 2% doz. 27 Ibs. 


Chain Fixture illustrated above is No. 2970—4-in. Fitter. No. 2971—-6-in. Fitter. Ceiling Type 
Fixture No. 2975—6-in. Fitter. No. 2985—4-in. Fitter. See page 14 for further information pertaining 
to Fixtures. 

SPECIAL NOTE—Above Units are carried in stock without hole in bottom. If desired with hole 


there will be an extra charge for drilling. For price information see page 5 of separate price 
list. 


When ordering Units, specify Complete Number including Decoration Number 


IO 


828 829 830 
831 880 888 
889 





D-Delica White Cased Glass I-Del Ivory Cased Glass 
N-Nicco Opal Glass 





Recommended Standard Weight 

Number Fitter Diameter Depth Wattage Package Package 
828 6 in. 12 in. WA Ste 150 to 200 l¢ doz. 17 lbs. 
829 9 in. 12 in. WA ser. 150 to 200 16 doz. 17 lbs. 
830 4 in. 8 in. ey 8 tract 75 to 100 2 doz. 27 \bs. 
831 vine 10 in. 0) stay. 100 to 150 le doz. 22 lbs 
837 6 in. 12 in. fy ieee 150 to 200 le doz. 16 lbs. 
838 6 in. 14 in. 91% in. 200 16 doz. 18 lbs. 
843 6 in. 16 in. 11% in. 300 1/12 doz. 15 lbs. 
880 6 in. 14 in. 16 an. 200 1/yo doz. 15 lbs. 
888 4 in. 10 in. LOM in. 100 to 150 le doz. 22 lbs. 
889 8 in. 14 in. 16 in. 200 1/19 doz. 15 lbs 
909 4 in. 10 in. 834 in. 100 to 150 le doz. 20 lbs. 
*910 6 in. 16 in. Val estat 300 1/j9 doz. 15 lbs. 


Chain Fixture illustrated above is No. 2970—4-in. Fitter. No. 2971—6-in. Fitter. Ceiling Type 
Fixture is No. 2975—6-in. Fitter. No. 2985—4-in. Fitter. See page 14 for further information pertaining 
to Fixtures. 

*No. 910 is same design as No. 909 shown above. 

SPECIAL NOTE—Above Units are carried in stock without hole in bottom. If desired with hole 
there will be an extra charge for drilling. For price information see page 6 of separate price 
list. 

When ordering Units, specify Complete Number including Decoration Number 


II 


-@ Kor Pp Gu.ass Inc, Swissvane.Pa. 


GANDEEPOWERDISTRIBUMOGNiE Sie 


UNIT No.855 Delica White Glass 


FOR KOPP GLASS, Inc. 180° ‘70° 
Swissvale, Pa. A 























LAMP 300 watt, Mazda C. 
P.S. Clear, ring filament. 
BULB 1156 volt. — 












Readings tak 
PROGEQU Ramp used in sa 


DIMENSIONS OF LUMINAIR oD 











oe 
Si ry 
seeteatane 





mn Mm OL) wi > 
| 
m 








WEIGHT OF GLASS 5 lb. ltoz. { F 











A 
LUMINAIRE DISTRIBUTION DATA 
erti c al 








S56 


FEET 






APPARENT 





ZONAL 
LUMENS 


ZONAL 
LUMENS 


15 



















ar TEN 



















650 
675 
684 
630 
594 
587 
540 
502 
462 


805 
405 
404 
411 
4217 
448 

















= 



















na 
5 

















APPARENT CANDLEPOWER 


Ss 














LUMENS 





PERCENT 
TOTAL LUMENS 
BARE LAMP LIGHT OUTPUT 











LAMP. LUMINAIRE 














0° =60° 


0°-90°9 | 3613 | 32 
90°-1809 3137 
















LUMINAIRE BRIGHTNESS MILLILAMBERTS AND CANDLEPOWER PER SQUARE INCH 


A B (S D 
LOCATE prrows indicate locations ant angie . 
MILLILAMBERTS 1780 1830 1425 1240 1350 1430 1530 1490 
CP. PER SQ. IN. 3-66 3.76 2.93 2.55 lenal 2.94 3.14 3.06 


TESTED BY Vie fy eee DaTE 7/28/26 
At CARNEGIE INSTITUTE OF TECHNOLOGY. PITTSBURGH, PA. 









E (2 G H 








Above test report will give you the Light Distribution of Unit No. 
855-D, Delica White Cased Glass. Tests have been made of other 
Delica White Units shown in this Catalogue; reports will be furnished 
on application. 


J 12% 


-@- Kopp Gtass Inc, Swissvae,.Pa._ 


AINE ZOWERSDIStTRIBURIONSIES TL: 


UNIT Wo. 855 Nicco Glass 


FOR KOPP GLASS, INC.,. 180° o° | 
Swissvale, Pas — 












LAMP SOO Watt Mazda c. 
P.S. Clear, ring filament. 
BULB 31s volt 


HOLDER6" Submitted with Luminaire 





eee 


ee 
Xe 
Lh 







































» 
procepure Luminaire rotated jn 909 ste SS “ 
Bare z 2 we 120 
RRR Si 
D2 SKK \\ 
ESSE SS SSS ONT I th 
V\ \ Thi 


~ Hu 





LuMINAIRE DisTRIBUTION DATA 



















































































F CES 
Mean Vertical Wy sei ae SS £0° 
me TH 4 
ZONAL z = 
LUMENS wl 3S me Lee a 
COX LT7 4, 
412 oe) Os SSS CTY LALO Y, L7 LT} / 
a SSNS RRL 
5 Bese sceresee ealelantan LRT 
ee Lonerible gs 
a 
Q 
z 
< 
uv f 
is 144 
i 50° 
4 
< 
o 
wi 








LUMENS PERCENT 
TOTAL LUMENS 


BARE LAMP LIGHT OUTPUT 









ZONE 






LUMINAIRE 






LAMP 











_9°-300 
~go-60° [1618 | 1 











479 
629 








LUMINAIRE BRIGHTNESS MILLILAMBERTS AND CANDLEPOWER PER SQUARE INCH 





LOCATIONS A B Cc D E a S H 


Notes- Arrows indicate locations and angle of view. 
MILLILAMBERTS * 1990 1900 1700 3449 3400 Psso 3179 
CP. PER SQ. IN. 4el 39 35249 9 087 3013 e41 


GIG Tia DATE /z2-z27-26 


TESTED BY “azo 
At CARNEGIE INSTITUTE OF TECHNOLOGY. PITTSBURGH, PA. 








Above test report will give you the Light Distribution of Unit No. 
855-N, Nicco Opal Glass. Tests have been made of other Nicco Units 
shown in this Catalogue; reports will be furnished on application. 


13 


LIGHTING FIXTURES 


E DO not manufacture Fixtures, we being manufacturers of Glass 

only, but for the convenience of our patrons who wish to purchase 
the Glassware with Fixtures complete, we have selected a line of Fix- 
tures which we believe will meet the requirements of the trade, and carry 
a stock so that we may be in position to make prompt shipment. 


We have illustrated these Fixtures in this catalogue with our Light- 
ing Units and will be glad to accept your orders for Fixtures complete 
with Glassware. 


These Fixtures are made of the very best grade materials of good 
weight. Furnished in Standard Finishes as specified, of the highest 
quality. 

No. 2970—4-inch Fitter, Brush Brass and Statuary Bronze. 

No. 2971—6-inch Fitter, Brush Brass and Statuary Bronze. 


No. 2975—6-inch Fitter, Brush Brass, Statuary Bronze and White 


Enamel. 


No. 2985—4-inch Fitter, Brush Brass, Statuary Bronze and White 


Enamel. 
Standard Length Chain Fixtures, 36 inches. 
Tassel can also be furnished if desired. 


For price information see page 7 of separate price list. 


Instructions for Ordering 


When ordering Fixtures, be sure to state number of Fixture and 
Finish desired, also length of Fixture or height of Ceiling, and if wanted 
WITH or WITHOUT Wire and Socket. On Nos. 2970 and 2971 specify 


size of Loop wanted. 


al 1418 


TERMS 


Net thirty days; F. O. B. cars our factory. 


Deliveries to carriers contingent upon strikes, accidents and delays 
unavoidable or beyond our control. 


All goods are carefully inspected and checked before packing. They 
are securely packed to insure delivery in perfect condition to the carrier. 
They are sold only F. O. B. CARS OUR FACTORY, and we assume no 
responsibility for safe arrival, as our responsibility ceases absolutely as 
soon as a bill of lading is issued. 


If shipments are not delivered to you in good order, and in accord- 
ance with items shown on your invoice, we recommend that you proceed 
as follows: 


Ist. Sign Railroad receipt ‘‘short” or “damaged” and have your 
freight agent mark the freight bill similarly. 


2nd. If packages are delivered in apparent good order, but, on open- 
ing, contents are found damaged or broken, call freight agent 
to view same, and have him mark freight bill relative to such 
“Concealed Damage.”’ 


3rd. We will, on request, send you a Duplicate Bill of Lading, and 
also, if desired, send a duplicate invoice. 


4th. Charge the claim against the Transportation Company on 
your books, sending a bill of same to your freight agent, with 
the original Bill of Lading, paid freight bill and copy of our 
invoice to support it. 


Sth. Make your claim promptly, for the Transportation Company 
will not consider a claim unless presented within four months 
from date of shipment. 


Should the breakage be of a serious nature, pay the charges anyway 
and then write us for instruction. 


Never Refuse a Shipment 


If you should refuse a shipment because of damages, the Transporta- 
tion Company will pay no attention except to ask for disposition of the 
goods, and if no disposition is made, the law allows them to sell the goods 
for their freight and storage charges. In order to secure attention, the 


goods MUST FIRST BE RECEIVED AND FREIGHT PAID. 


Always remember that they are your goods under the law, and you 
must show a disposition to assist in adjusting the matter. 


We will be pleased to co-operate with you in overcoming breakages, 
or the mishandling of any of our shipments. 


a] 5b 





Kopp Guass, Inc. 
Swissvale, Pa. 


On Main Line of Pennsylvania R. R. 
Eight Miles East of Pittsburgh 


5M-10-27 
PRINTED IN U.S. A. 





Sita aa eae 
fal hy ee 





